“…sort of like the sounds televisions used to emit”
Yep, same here, closest real sound to it is the ~15kHz whine from an old TV. I’ve had it since childhood. It’s the sound of silence to me. Real sounds drown it out so it’s not a distraction. Allows me to sleep when there are no other real sounds. Total silence is never there but it doesn’t bother me.
Yes, same here. I’ve had it for decades. It has gotten worse as I have gotten older . It is starting to drive me crazy.....